[PATCH 3/7] common/mlx5: add hairpin RQ buffer type capabilities

[Slava Ovsiienko]

> -----Original Message-----
> From: Dariusz Sosnowski <dsosnowski at nvidia.com>
> Sent: Monday, September 19, 2022 19:37
> To: Matan Azrad <matan at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>
> Cc: dev at dpdk.org
> Subject: [PATCH 3/7] common/mlx5: add hairpin RQ buffer type capabilities
> 
> This patch adds new HCA capability related to hairpin RQs. This new
> capability, hairpin_data_buffer_locked, indicates whether HCA supports
> locking data buffer of hairpin RQ in ICMC (Interconnect Context Memory
> Cache).
> 
> Struct used to define RQ configuration (RQ context) is extended with
> hairpin_data_buffer_type field, which configures data buffer for hairpin RQ.
> It can take the following values:
> 
> - MLX5_RQC_HAIRPIN_DATA_BUFFER_TYPE_UNLOCKED_INTERNAL_BUFFER - hairpin
>   RQ's data buffer is stored in unlocked memory in ICMC.
> - MLX5_RQC_HAIRPIN_DATA_BUFFER_TYPE_LOCKED_INTERNAL_BUFFER - hairpin
>   RQ's data buffer is stored in locked memory in ICMC.
> 
> Signed-off-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>